:root{
  --bg:#f6f7fb;--surface:#fff;--ink:#141a2a;--ink2:#3d4760;--mut:#6b7590;--line:#e5e8f0;--line2:#d5dae6;
  --pri:#4f46e5;--pri-h:#4338ca;--pri-soft:#eeedfd;--ok:#127a4b;--ok-soft:#e5f6ed;--warn:#9a5b06;--warn-soft:#fdf1dc;--bad:#b83227;--bad-soft:#fdeceb;
  --shadow:0 1px 2px rgba(20,26,42,.05),0 4px 14px rgba(20,26,42,.05);--r:12px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
h1,h2,h3{letter-spacing:-.015em;margin:0}
h1{font-size:26px;line-height:1.2}h2{font-size:19px}h3{font-size:16px}
a{color:var(--pri)}
button{font:inherit}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar-in{max-width:1180px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none}
.brand i{width:30px;height:30px;border-radius:8px;background:var(--pri);color:#fff;display:grid;place-items:center;font-style:normal;font-size:15px}
nav{display:flex;gap:2px;flex:1;overflow-x:auto}
nav a{padding:8px 13px;border-radius:8px;color:var(--ink2);text-decoration:none;font-weight:500;white-space:nowrap;transition:background .15s,color .15s}
nav a:hover{background:#f0f1f7}nav a.active{background:var(--pri-soft);color:var(--pri)}
.userbox{display:flex;align-items:center;gap:10px;color:var(--ink2);font-size:14px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--pri-soft);color:var(--pri);display:grid;place-items:center;font-weight:700;font-size:13px}
.who{display:flex;flex-direction:column;line-height:1.2}.who small{color:var(--mut)}

main{max-width:1180px;margin:0 auto;padding:28px 20px 90px;min-height:70vh}
.page-head{display:flex;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.page-head p{margin:4px 0 0;color:var(--mut)}.grow{flex:1}

/* buttons / forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--pri);color:#fff;border:1px solid var(--pri);border-radius:9px;padding:9px 16px;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s,transform .05s,box-shadow .15s;white-space:nowrap}
.btn:hover{background:var(--pri-h)}.btn:active{transform:translateY(1px)}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,nav a:focus-visible,.chip:focus-visible{outline:2px solid var(--pri);outline-offset:2px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line2)}.btn.ghost:hover{background:#f3f4f9}
.btn.danger{background:var(--bad);border-color:var(--bad)}.btn.danger:hover{background:#9a281f}
.btn.sm{padding:5px 11px;font-size:13px;border-radius:8px}.btn.lg{padding:12px 22px;font-size:16px}
label{display:block;font-size:13px;font-weight:600;color:var(--ink2);margin:14px 0 5px}
input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--line2);border-radius:9px;font:inherit;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{border-color:var(--pri);box-shadow:0 0 0 3px var(--pri-soft);outline:none}
.field-err{color:var(--bad);font-size:13px;margin:8px 0 0;min-height:1em}
.hint{color:var(--mut);font-size:13px}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.toolbar .search{flex:1 1 240px;min-width:200px}.toolbar select,.toolbar input[type=date]{width:auto;flex:0 1 170px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:18px}
.ev{display:flex;flex-direction:column;gap:10px;transition:transform .18s,box-shadow .18s,border-color .18s;animation:rise .35s ease both}
.ev:hover{transform:translateY(-2px);border-color:var(--line2);box-shadow:0 8px 24px rgba(20,26,42,.09)}
.ev h3 a{color:var(--ink);text-decoration:none}.ev h3 a:hover{color:var(--pri)}
.ev p{margin:0;color:var(--ink2);font-size:14px;flex:1}
.meta{display:grid;gap:3px;color:var(--mut);font-size:13.5px}
.cap{height:6px;border-radius:6px;background:#edeff6;overflow:hidden}.cap>i{display:block;height:100%;background:var(--pri);border-radius:6px;transition:width .5s}
.cap.full>i{background:var(--bad)}.cap.low>i{background:#d9822b}
.ev-foot{display:flex;gap:8px;align-items:center;margin-top:2px}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600;background:var(--pri-soft);color:var(--pri);white-space:nowrap}
.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.badge.bad{background:var(--bad-soft);color:var(--bad)}.badge.gray{background:#eef0f5;color:var(--ink2)}

/* tables */
.tablewrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}
th{background:#fafbfd;color:var(--mut);font-size:12px;text-transform:uppercase;letter-spacing:.05em;font-weight:600}
tr:last-child td{border-bottom:0}tbody tr:hover{background:#fafbff}
td .sub{color:var(--mut);font-size:13px}.actions{display:flex;gap:6px;justify-content:flex-end}

/* dashboard */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:20px}
.stat .n{font-size:30px;font-weight:700;letter-spacing:-.02em}.stat .l{color:var(--mut);font-size:13px;font-weight:500}
.two{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.bar-row{margin:13px 0}.bar-top{display:flex;justify-content:space-between;gap:10px;font-size:14px;margin-bottom:5px}
.list-item{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}.list-item:last-child{border:0}

/* landing */
.hero{padding:64px 0 40px;text-align:center}
.hero .eyebrow{display:inline-flex;gap:8px;align-items:center;padding:5px 14px;border-radius:99px;background:var(--pri-soft);color:var(--pri);font-weight:600;font-size:13px;margin-bottom:18px}
.hero h1{font-size:clamp(32px,5vw,52px);max-width:800px;margin:0 auto 16px;line-height:1.1}
.hero p{max-width:620px;margin:0 auto 26px;color:var(--ink2);font-size:18px}
.section{margin-top:56px}.section>h2{font-size:24px;margin-bottom:6px}.section>.hint{margin:0 0 20px;font-size:15px}
.cats{display:flex;flex-wrap:wrap;gap:10px}
.cat{padding:10px 18px;border-radius:99px;background:#fff;border:1px solid var(--line);font-weight:600;color:var(--ink2);box-shadow:var(--shadow);text-decoration:none;transition:border-color .15s,color .15s}
.cat:hover{border-color:var(--pri);color:var(--pri)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.feat .ic{width:40px;height:40px;border-radius:10px;background:var(--pri-soft);display:grid;place-items:center;font-size:19px;margin-bottom:12px}
.feat p{margin:6px 0 0;color:var(--ink2);font-size:14px}
.ai-intro{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center;background:var(--ink);color:#fff;border-radius:18px;padding:36px}
.ai-intro h2{font-size:26px;color:#fff}.ai-intro p{color:#c4cadb}
.ai-demo{background:#1f2740;border-radius:14px;padding:16px;display:grid;gap:10px;font-size:14px}
.bubble{padding:9px 13px;border-radius:12px;max-width:90%}.bubble.u{background:var(--pri);justify-self:end}.bubble.a{background:#2b3556;justify-self:start}
.ctas{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.cta{padding:28px}.cta p{color:var(--ink2);margin:6px 0 16px}
footer{border-top:1px solid var(--line);background:#fff;padding:28px 20px;color:var(--mut);font-size:14px}
footer .in{max-width:1180px;margin:0 auto;display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between}

/* auth */
.auth{max-width:440px;margin:30px auto}
.tabs{display:flex;background:#eceef5;border-radius:10px;padding:3px;margin-bottom:6px}
.tabs button{flex:1;border:0;background:none;padding:8px;border-radius:8px;font-weight:600;color:var(--ink2);cursor:pointer}
.tabs button.on{background:#fff;color:var(--ink);box-shadow:var(--shadow)}

/* detail */
.detail{display:grid;grid-template-columns:2fr 1fr;gap:20px;align-items:start}
.kv{display:grid;grid-template-columns:auto 1fr;gap:10px 16px;margin:0}.kv dt{color:var(--mut)}.kv dd{margin:0;font-weight:500}

/* modal + toast */
.modal{position:fixed;inset:0;background:rgba(14,18,32,.5);display:grid;place-items:center;z-index:60;padding:16px;animation:fade .15s}
.modal-box{background:#fff;border-radius:16px;padding:26px;max-width:560px;width:100%;max-height:92vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:pop .18s}
.modal-box h2{margin-bottom:10px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.form-grid .full{grid-column:1/-1}
@keyframes fade{from{opacity:0}}@keyframes pop{from{opacity:0;transform:scale(.97) translateY(6px)}}
.toasts{position:fixed;right:18px;top:76px;z-index:80;display:grid;gap:10px;width:min(380px,calc(100vw - 36px))}
.toast{background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.2);animation:pop .2s;font-size:14px}
.toast.ok{background:var(--ok)}.toast.err{background:var(--bad)}.toast.warn{background:#a35f08}

/* states */
.empty{text-align:center;color:var(--mut);padding:44px 20px}.empty b{display:block;color:var(--ink);font-size:16px;margin-bottom:4px}
.state-err{border:1px solid #f1c6c2;background:var(--bad-soft);color:var(--bad);padding:16px;border-radius:var(--r)}
.skel{height:170px;border-radius:var(--r);background:linear-gradient(90deg,#eceef5 25%,#f6f7fb 50%,#eceef5 75%);background-size:200% 100%;animation:sh 1.2s infinite}
@keyframes sh{to{background-position:-200% 0}}
.spin{width:15px;height:15px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:rot .7s linear infinite;display:inline-block}
.spin.dark{border-color:#c9cee0;border-top-color:var(--pri)}
@keyframes rot{to{transform:rotate(360deg)}}

/* AI assistant */
.ai-fab{position:fixed;right:22px;bottom:22px;z-index:40;border:0;cursor:pointer;background:var(--pri);color:#fff;border-radius:99px;padding:13px 20px;font-weight:600;box-shadow:0 8px 24px rgba(79,70,229,.4);display:flex;gap:8px;align-items:center;transition:transform .15s,background .15s}
.ai-fab:hover{background:var(--pri-h);transform:translateY(-2px)}
.ai-panel{position:fixed;right:22px;bottom:22px;z-index:50;width:410px;max-width:calc(100vw - 24px);height:min(640px,calc(100vh - 100px));background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 60px rgba(14,18,32,.25);display:flex;flex-direction:column;overflow:hidden;animation:pop .2s}
.ai-head{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);background:#fafbfd}
.ai-head .dot{width:9px;height:9px;border-radius:50%;background:var(--ok)}.ai-head .dot.off{background:var(--bad)}
.ai-head small{color:var(--mut);display:block;line-height:1.2}
.ai-msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;background:#fff}
.msg{max-width:88%;padding:10px 14px;border-radius:14px;white-space:pre-wrap;word-wrap:break-word;font-size:14.5px}
.msg.user{align-self:flex-end;background:var(--pri);color:#fff;border-bottom-right-radius:4px}
.msg.assistant{align-self:flex-start;background:#f0f2f8;border-bottom-left-radius:4px}
.msg.error{background:var(--bad-soft);color:var(--bad)}
.tools{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.tool{font-size:11.5px;font-family:ui-monospace,Menlo,Consolas,monospace;padding:2px 8px;border-radius:6px;background:#fff;border:1px solid var(--line2);color:var(--ink2)}
.tool.fail{border-color:#f1c6c2;color:var(--bad)}
.typing{display:flex;gap:9px;align-items:center;color:var(--mut);font-size:14px}
.chips{display:flex;gap:7px;flex-wrap:wrap;padding:0 16px 10px}
.chip{border:1px solid var(--line2);background:#fff;border-radius:99px;padding:5px 12px;font-size:12.5px;cursor:pointer;color:var(--ink2);transition:border-color .15s,color .15s}
.chip:hover{border-color:var(--pri);color:var(--pri)}
.ai-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}.ai-form input{flex:1}

@media(max-width:860px){
  .two,.detail,.ai-intro,.ctas{grid-template-columns:1fr}
  .who{display:none}.topbar-in{gap:10px}
}
@media(max-width:560px){
  .form-grid{grid-template-columns:1fr}.hero{padding-top:36px}
  .ai-panel{right:8px;bottom:8px;height:calc(100vh - 80px)}
  th,td{padding:10px 12px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}